A steam generator system configured to burn hydrogen and oxygen at stoichiometry along with a high-pressure water and steam. Said steam generator system comprise a hydrogen source, an oxygen source, a nitrogen source, a water source, a steam source, a hydrogen-oxygen handling unit, a cooling unit, a one or more H2-O2 steam generators and a control unit. Said steam generator system is configured to provide said hydrogen source to said hydrogen-oxygen handling unit through an oxygen passage, said oxygen source to said hydrogen-oxygen handling unit through a hydrogen passage, and said nitrogen source to selectively purge said oxygen passage and said hydrogen passage. Said water source provide water to said cooling unit. Said cooling unit is configured to receive said water source and said steam source.

A self-pumping fuel injector includes a pump and a motor for, in-part, delivering fuel to a combustor at higher fuel pressures during start-up and ramping-up conditions. Each pump may include a stationary flow interuptor that intermittently and variably supplies fuel to a rotating spindle that, in-turn, expels the fuel into a nozzle of the injector for improve fuel spray distributions.

A heating device operating with liquid fuel in the single-line mode includes a fuel pump which draws fuel from a supply tank and delivers it into a pressure line region communicating with an atomiser nozzle opening into a combustion chamber, wherein excess fuel is returned from the pressure region to the suction side of the fuel pump by way of a pressure regulator, a return line and a bypass line. Arranged between the return line and the bypass line is a venting apparatus including an actuating element which is reciprocable between an operating position and a venting position and which in the operating position connects the return line to the bypass line to reliably seal the medium in the lines towards the exterior and in the venting position connects the return line to the exterior of the heating device and in that case closes the bypass line.

A self-pumping fuel injector includes a pump and a motor for, in-part, delivering fuel to a combustor at higher fuel pressures during start-up and ramping-up conditions. Each pump may include a stationary flow interuptor that intermittently and variably supplies fuel to a rotating spindle that, in-turn, expels the fuel into a nozzle of the injector for improve fuel spray distributions.

The present invention relates to a hybrid domestic fireplace, configured to burn a fuel mixture of a first combustible fuel and a second combustible fuel, comprising a combustible long chain hydrocarbon fuel, the fireplace comprising: a mixing device, configured to mix the first fuel and the second fuel to form the fuel mixture and, a first fuel supply, configured to supply the first fuel to the mixing device, a second fuel supply, configured to supply the second fuel to the mixing device, and a burner, configured to combust the fuel mixture, wherein the mixing device is further configured to heat the second fuel to a mixing temperature, and wherein the mixing device is configured to mix the first fuel with the heated second fuel to form the fuel mixture.

A liquid fuel portable heater (100) comprises: a combustion chamber (101) having a fuel inlet with a nebuliser (13); an electric pump (10) having an inlet (11) for suctioning said liquid fuel from a tank (6), and an outlet (12) connected to said nebuliser (13); a control unit (20) configured so that, when the heater (100) is turned on, said control unit (20) supplies the electric pump with a sequence of pulses (115, 115) with a non-zero voltage, and pause intervals (116) with a substantially zero voltage alternating with said pulses, wherein the average duration of the pulses (115, 115) is less than the average duration of the pause intervals (116). In addition, a method for controlling an electric power supply of a fuel electric pump (10) of a liquid fuel portable heater by means of an electric control unit (20) configured to control said electric power supply, comprising a step of electrically supplying said pump, once the heater is turned on, with a sequence of pulses (115, 115) with a non-zero voltage, and pause intervals (116) with a substantially zero voltage alternating with said pulses, wherein the average duration of the pulses (115, 115) is less than the average duration of the pause intervals (116).

Described herein are catalytic heating systems, comprising catalytic reactors and dual-mode fuel evaporators, and methods of operating such systems. A dual-mode fuel evaporator is thermally coupled to a catalytic reactor and comprises an electric heater used for preheating the evaporator to at least a fuel-flow threshold temperature. Upon reaching this threshold, the liquid fuel, such as ethanol or methanol, is flown into the evaporator and evaporates therein, forming vaporized fuel. The vaporized fuel is mixed with oxidant, and the mixture is flown into the catalytic reactor where the vaporized fuel undergoes catalytic exothermic oxidation. At least some heat, generated in the catalytic reactor, is transferred to the evaporator and used for the evaporation of additional fuel. When the evaporator reaches or exceeds its operating threshold, the electric heater can be turned off and all heat is supplied to the evaporator from the catalytic reactor.

An electrical power generation system for a directed energy weapon includes a fuel pump configured to disperse a liquid fuel. Also included is an oxidizer pump configured to disperse a liquid oxidant. Further included is a combustor fluidly coupled to the fuel pump and the oxidizer pump to receive the liquid fuel and the liquid oxidant for combustion therein to form a combustion mixture. Yet further included is a turbine fluidly coupled to the combustor to receive the combustion mixture to generate mechanical energy. Also included is a generator operatively coupled to a rotor shaft of the turbine to convert the mechanical energy to electrical power for the directed energy weapon.

A heating device operating with liquid fuel in the single-line mode includes a fuel pump which draws fuel from a supply tank and delivers it into a pressure line region communicating with an atomiser nozzle opening into a combustion chamber, wherein excess fuel is returned from the pressure region to the suction side of the fuel pump by way of a pressure regulator, a return line and a bypass line. Arranged between the return line and the bypass line is a venting apparatus including an actuating element which is reciprocable between an operating position and a venting position and which in the operating position connects the return line to the bypass line to reliably seal the medium in the lines towards the exterior and in the venting position connects the return line to the exterior of the heating device and in that case closes the bypass line.

Disclosed are a device for supplying liquid at a constant amount and a method for controlling the same, and the device for supplying liquid at a constant amount comprises a constant amount chamber, an input pump, an output pump, a liquid level detection device, and a controller; the input pump is provided with an input pump liquid feeding pipe and an input pump liquid discharging pipe; the output pump is provided with an output pump liquid feeding pipe and an output pump liquid discharging pipe; the input pump, the output pump, and the liquid level detection device are each in matched connection with the controller. In the present invention, by cyclic operation, a liquid volume between a high liquid level and a low liquid level is delivered at a constant amount in each cycle, so that liquid fuel is supplied at a constant amount.